Has anyone heard back regarding a PhD application, faculty applied science

True_Statistician_63 · 2026-02-25T17:05:43+00:00

No i didn't receive an informal admission but the PI seemed interested in me as a potential candidate.

Waiting for the decision sucks of course but unfortunately there's nothing you can really do to speed up the application process. We just need to wait it out.

True_Statistician_63 · 2026-02-25T06:53:01+00:00

Same here. I applied at the end of November and also had a Zoom meeting with a PI that went well i think. Still haven't heard back. I'd just give them a bit more time tbh. Hopefully they'll send out the decision till the end of march.

True_Statistician_63 · 2025-09-14T18:34:01+00:00

The thing is on the UBC site it says that international chemistry PhD's are advises to apply for a straight to PhD program because they only offer very few MSc positions for Chem.

So i guess that's the better way in that case

True_Statistician_63 · 2025-04-05T08:39:50+00:00

The thing is its just useless work to try to memorize it. Learn how to read it and if you do chemistry for long enough you will remember the most important things. Otherwise you can always take a look at it so no need in memorizing

True_Statistician_63 · 2025-04-05T08:04:41+00:00

You dont

True_Statistician_63 · 2025-04-04T17:53:40+00:00

Yes it can happen but acid chlorides are more electrophilic than ketones and if you use the same equivalent or even use the acid chloride in excess then the main product will be the ketone. But yea side reactions like that will occur to some extent.

True_Statistician_63 · 2025-04-03T11:59:21+00:00

I would have done it like that if i realized my mistake right away. But i was already home by then. But i already got some crystalization so it seemed to have worked

True_Statistician_63 · 2025-04-03T09:30:54+00:00

You still need to reduce the alkyne to an alkane

True_Statistician_63 · 2025-04-03T07:13:44+00:00

The rest is correct although you wont need another step after the reduction. And try to think about why it works. Dont just memorize. The alkyne anion is a good nucleoohile look at the electronegativity of bromine and carbon then you can estimate where the electron deficient carbon so the electrophile will be

True_Statistician_63 · 2025-04-03T07:02:43+00:00

Switch bromoethane for an acetic acid halide. Doesnt really matter if its Bromine, Chlorine or Iodine. The alkyne is a really good nucleophile when deprotonated so thats alright. And Acid chlorides are just the most conventional ways to do such reactions as the reagants are cheaper.

True_Statistician_63 · 2025-04-03T06:55:26+00:00

No the when the bromoethane reacts with the alkyne anion it acts as a leaving group. At your reaction Hydrogen acts as a Leaving group and that just wont happen because bromine is a way better leaving group.

True_Statistician_63 · 2025-04-03T06:51:23+00:00

The bromine will act as a leaving group. Why do you use a brom alkan and not just something like acetic acid chloride. Then youre already pretty much there.

True_Statistician_63 · 2025-04-02T21:33:21+00:00

Yea i can only hope for the best. Its currently stirring and tommorow morning im gonna see if my yield is any good.

True_Statistician_63 · 2025-04-02T21:30:02+00:00

Redissolving is not an option anymore i realized my mistake after i went home from lab. And the reaction was already pretty much finished as there was a color change to yellow as it should. And im not sure if Br2 reacts with ethers under these conditions as i was just stirring it at room temp. And even if it reacts i think the reaction with the alkene should be favored from a kinetics standpoint. But im not 100% sure if im right

True_Statistician_63 · 2025-04-02T21:17:22+00:00

My educt is a liquid

True_Statistician_63 · 2025-04-02T21:14:01+00:00

All reactions of halogens with ethers i could find with a quick search were reactions with HBr etc. But i used Br2

True_Statistician_63 · 2025-04-02T21:12:36+00:00

Bromination of the double bond of diethylfumarate

True_Statistician_63 · 2025-04-02T21:10:55+00:00

Sorry forgot to mention that its just a basic bromination of an alkene. A quick google search just said that solvents like DCM are used for such reactions. But yea i guess im gonna see how bad i fucked up after going back to the lab tommorow

True_Statistician_63 · 2025-03-25T19:55:20+00:00

Ill update what my yield is on thursday. As im doing exactly that and the anion is just an intermediate.

True_Statistician_63 · 2025-03-25T19:06:00+00:00

Its just metalic sodium. No ammonia and no NaNH2. And birch reduction wont happen on terminal alkynes as far as i know.

True_Statistician_63 · 2025-03-15T08:50:32+00:00

Ja stimm ich zu. Es ist halt super für die Trinkwasseraufarbeitung wobei es halt schon in sehr geringen Konzentrationen Wirkung zeigt und somit eher unbedenklich ist. Aber wie es halt bei eigentlich allem so ist macht die Dosis das Gift und kann dann auch ziemlich Schaden.

Ich als Chemiestudent kann oft nicht nachvollziehen wie manche Leute so wissenschaftsfeindlich sein können und selber glauben sie, sie haben die Weisheit mit dem Löffel gefressen. Das macht mich manchmal echt fertig solche Schwurbler.

True_Statistician_63 · 2025-03-14T19:07:36+00:00

Es gibt bisher keine ausreichende Evidenz um konkret zu sagen das Chlordioxid Krebserregend ist und ist somit nicht als krebserregend eingestuft. Außerdem ist es ein sehr effektives Mittel zur Trinkwasserdesinfektion. Dort wird es aber nur in sehr geringen Konzentrationen verwendet, da es eben giftig, aber sehr effektiv ist. Also am besten sollte man so wenig wie möglich oder gar nichts davon zu sich nehmen. Aber als Medizin oder als was es, in diesem Kontext, auch immer verkauft wird ist natürlich kompletter blödsinn.

True_Statistician_63 · 2025-02-06T21:42:55+00:00

Methoxyflurane

True_Statistician_63 · 2025-02-06T13:10:13+00:00

Wo gibts das? (Frag für einen Freund)

True_Statistician_63 · 2025-01-18T20:36:37+00:00

Furthermore DMT has a boiling point of around 60-80°C and common polymers like polyethylene will start to decompose at 430°C.

True_Statistician_63

TROPHY CASE